Upgrade your Mega BigShock Blaster with our professional-grade piano steel spring. With a weight capacity of 10kg, this upgrade guarantees increased power and precision for your Nerf battles. Package includes 1x spring for easy installation. Unleash the full potential of your blaster with this upgrade.

Specifications:

Material: piano steel

Type: 10kg

Package includes: 1x Mega BigShock nerf Blaster spring upgrade mod